P0A08 and I have to pee! Can I drive at all?

Hope you all had a nice 4th...

Car still in the shop as they had a long weekend too.

Theory on air conditioning now:

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The AC is stopping at idle because it is too hot, which makes the pressure in the system too high. That is monitored and causes the system to just shut off. It is probably a combination of factors. Slightly unpure refrigerant, slightly overcharged [a/c], blocked radiator and condenser fins, and the foam pipe insulation protecting the lower grille that is blocking air flow.
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Great point that my pipe insulation from winter is still on!!! That is certainly on me. Duh.

They discharged a little bit of refrigerant. I can easily take off the pipe insulation. They want $225 to clean radiator/condenser fins. Worth it?

Anything not sound logical? Could the pipe insulation be the actual root cause of the overheat? I am berating myself for not even remotely thinking of it.